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@caischen

Hobby.

One life. Every hobby. Documented.

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Chapter 01 · Outdoors

Camping

Where it started. A tent, a mountain, and the discovery that being slightly uncomfortable outside beats being comfortable inside.

Chapter 02 · Outdoors

Hiking

Walking uphill on purpose. The longer the climb, the better the story at the top.

Chapter 05 · Endurance

Marathon

26.2 miles of negotiating with your own legs. The finish line that made suffering feel like a skill.

Read the race reports

Chapter 06 · Sport

Lifting

Squats, deadlifts, and the discovery that every hobby gets easier when you're strong. The gym became base camp for everything after.

Chapter 08 · Endurance

Ironman

140.6 miles in a single day. The boss fight of endurance hobbies. Defeated.

2.4mi swim
112mi bike
26.2mi run

Chapter 09 · Water

Freediving

One breath, straight down. The quietest place I've ever been.

Chapter 10 · Outdoors / Travel

Solo
Backpacking

Everything you need on your back, nobody to split decisions with. The final exam for every outdoor skill so far.

See all hobbies

Chapter 11 · DIY · Up Next

Home
Improvement

Taking the hobby energy indoors. Building, fixing, and probably re-doing it twice. The power tool era starts now.

Watch the build happen

Follow the chaos

@caischen

New hobby attempts, honest fails, and finish lines — posted as they happen.

10+

hobbies tried & documented

1

Ironman finished

140.6

miles in one race day

26.2

miles per marathon

Latest adventures

Fresh from the journal.

photo: race morning

Endurance2026-05-30

Race report: the day of 140.6

Everything that went right, everything that went sideways, and what I'd tell anyone standing on that beach at 6:50am.

photo: descent line

Water2026-04-12

Learning to freedive, one breath at a time

What the first week of freedive training actually feels like — and why the hardest part happens above the surface.

photo: pack explosion

Outdoors2026-03-02

Solo backpacking: the full pack list

Every item that earned its place, the gear that got cut, and the one thing I'll never leave behind again.

Read the journal →